# Numeric fields as numerics
fcn fieldize(s){
   s.apply(fcn(c){"1234567890".holds(c) and c or "."}).split(".")
   .filter().apply("toInt");
}
fcn fcmp(a,b){ // T(key, T(numeric fields)), eg L(0, L(100,99,0))
   a[1].zip(b[1]).reduce(fcn(_,[(a,b)]){
      if(a==b)return(True); // continue to next field
      return(Void.Stop,a<b);
   },True);
}
fcn fsort(list){
   list.apply(fieldize).enumerate().sort(fcmp)
   .apply('wrap([(n,_)]){list[n]});
}